-71.6% is the change from 507 to 144
Calculation steps:
[( 144 - 507 ) ÷ 507] x 100 = -71.6%
Formula
Percentage change = [(144 - 507) / 507] x 100
Subtract the new number by the original number
144 - 507 = -363
-363 ÷ 507 = -0.7159763313609467
-0.7159763313609467 x 100 = -71.6%